United States. Bureau of Labor Statistics. "January 1970," CPI Detailed Report (January 1970). https://fraser.stlouisfed.org/title/58/item/22244, accessed on April 19, 2024.
United States. Bureau of Labor Statistics. "January 1970," CPI Detailed Report (January 1970). https://fraser.stlouisfed.org/title/58/item/22244, accessed on April 19, 2024.